[Gpg4win-users-en] key type not supported

Andre Heinecke aheinecke at intevation.de
Fri Oct 30 17:50:04 CET 2015


On Friday 30 October 2015 17:19:30 Bernhard Kleine wrote:
> I got the following message in the gpg-user maillist. Enigmail tells me
> that the key type is not supported.
> I have thunderbird 38.3.0, enigmail 1.8.2 and gpg4win from today. I
> wonder what is so new that it is not yet supported in Gpg4win

The message was signed twice. Once with an RSA subkey and once with an ed25519 
Verifying on the command line with GnuPG 2.1 gives me:

Signature made Fri 30 Oct 2015 12:44:06 PM CET using RSA key ID B31F25F0
Signature made Fri 30 Oct 2015 12:44:13 PM CET using EDDSA key ID 1AF778E4

The EDDSA key is an ed25519 ECC [1] key. ECC keys in GnuPG are a new feature 
of GnuPG 2.1. And for compatibility reasons they should still be avoided. 
Gpg4win still uses the stable branch of GnuPG (2.0) that does not support ECC 

So i guess for this key Enigmail correctly told you that the key type is not 
supported. (The error message probably could have been a bit more verbose ;-) 

We are planning to release a beta of Gpg4win that includes GnuPG 2.1 end of 


1: https://wikipedia.org/wiki/Elliptic_Curve_Cryptography
Andre Heinecke |  ++49-541-335083-262  | http://www.intevation.de/
Intevation GmbH, Neuer Graben 17, 49074 Osnabrück | AG Osnabrück, HR B 18998
Geschäftsführer: Frank Koormann, Bernhard Reiter, Dr. Jan-Oliver Wagner
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